2 * linux/drivers/video/riva/fbdev.c - nVidia RIVA 128/TNT/TNT2 fb driver
4 * Maintained by Ani Joshi <ajoshi@shell.unixbox.com>
6 * Copyright 1999-2000 Jeff Garzik
10 * Ani Joshi: Lots of debugging and cleanup work, really helped
11 * get the driver going
13 * Ferenc Bakonyi: Bug fixes, cleanup, modularization
15 * Jindrich Makovicka: Accel code help, hw cursor, mtrr
17 * Paul Richards: Bug fixes, updates
19 * Initial template from skeletonfb.c, created 28 Dec 1997 by Geert Uytterhoeven
20 * Includes riva_hw.c from nVidia, see copyright below.
21 * KGI code provided the basis for state storage, init, and mode switching.
23 * This file is subject to the terms and conditions of the GNU General Public
24 * License. See the file COPYING in the main directory of this archive
27 * Known bugs and issues:
28 * restoring text mode fails
29 * doublescan modes are broken
32 #include <linux/module.h>
33 #include <linux/kernel.h>
34 #include <linux/errno.h>
35 #include <linux/string.h>
37 #include <linux/slab.h>
38 #include <linux/delay.h>
40 #include <linux/init.h>
41 #include <linux/pci.h>
42 #include <linux/backlight.h>
43 #include <linux/bitrev.h>
49 #include <asm/pci-bridge.h>
51 #ifdef CONFIG_PMAC_BACKLIGHT
52 #include <asm/machdep.h>
53 #include <asm/backlight.h>
59 #ifndef CONFIG_PCI /* sanity check */
60 #error This driver requires PCI support.
63 /* version number of this driver */
64 #define RIVAFB_VERSION "0.9.5b"
66 /* ------------------------------------------------------------------------- *
68 * various helpful macros and constants
70 * ------------------------------------------------------------------------- */
71 #ifdef CONFIG_FB_RIVA_DEBUG
72 #define NVTRACE printk
74 #define NVTRACE if(0) printk
77 #define NVTRACE_ENTER(...) NVTRACE("%s START\n", __FUNCTION__)
78 #define NVTRACE_LEAVE(...) NVTRACE("%s END\n", __FUNCTION__)
80 #ifdef CONFIG_FB_RIVA_DEBUG
81 #define assert(expr) \
83 printk( "Assertion failed! %s,%s,%s,line=%d\n",\
84 #expr,__FILE__,__FUNCTION__,__LINE__); \
91 #define PFX "rivafb: "
93 /* macro that allows you to set overflow bits */
94 #define SetBitField(value,from,to) SetBF(to,GetBF(value,from))
95 #define SetBit(n) (1<<(n))
96 #define Set8Bits(value) ((value)&0xff)
98 /* HW cursor parameters */
101 /* ------------------------------------------------------------------------- *
105 * ------------------------------------------------------------------------- */
107 static int rivafb_blank(int blank, struct fb_info *info);
109 /* ------------------------------------------------------------------------- *
111 * card identification
113 * ------------------------------------------------------------------------- */
115 static struct pci_device_id rivafb_pci_tbl[] = {
116 { PCI_VENDOR_ID_NVIDIA_SGS, PCI_DEVICE_ID_NVIDIA_SGS_RIVA128,
117 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
118 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_TNT,
119 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
120 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_TNT2,
121 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
122 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_UTNT2,
123 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
124 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_VTNT2,
125 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
126 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_UVTNT2,
127 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
128 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_ITNT2,
129 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
130 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_SDR,
131 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
132 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_DDR,
133 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
134 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO,
135 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
136 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_MX,
137 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
138 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_MX2,
139 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
140 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_GO,
141 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
142 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO2_MXR,
143 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
144 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_GTS,
145 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
146 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_GTS2,
147 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
148 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_ULTRA,
149 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
150 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO2_PRO,
151 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
152 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_460,
153 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
154 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_440,
155 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
156 // NF2/IGP version, GeForce 4 MX, NV18
157 { PCI_VENDOR_ID_NVIDIA, 0x01f0,
158 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
159 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_420,
160 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
161 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_440_GO,
162 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
163 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_420_GO,
164 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
165 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_420_GO_M32,
166 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
167 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_500XGL,
168 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
169 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_440_GO_M64,
170 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
171 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_200,
172 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
173 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_550XGL,
174 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
175 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_500_GOGL,
176 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
177 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_IGEFORCE2,
178 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
179 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE3,
180 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
181 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE3_1,
182 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
183 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE3_2,
184 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
185 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO_DDC,
186 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
187 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4600,
188 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
189 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4400,
190 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
191 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4200,
192 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
193 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_900XGL,
194 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
195 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_750XGL,
196 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
197 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_700XGL,
198 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
199 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_GO_5200,
200 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
201 { 0, } /* terminate list */
203 MODULE_DEVICE_TABLE(pci, rivafb_pci_tbl);
205 /* ------------------------------------------------------------------------- *
209 * ------------------------------------------------------------------------- */
211 /* command line data, set in rivafb_setup() */
212 static int flatpanel __devinitdata = -1; /* Autodetect later */
213 static int forceCRTC __devinitdata = -1;
214 static int noaccel __devinitdata = 0;
216 static int nomtrr __devinitdata = 0;
218 #ifdef CONFIG_PMAC_BACKLIGHT
219 static int backlight __devinitdata = 1;
221 static int backlight __devinitdata = 0;
224 static char *mode_option __devinitdata = NULL;
225 static int strictmode = 0;
227 static struct fb_fix_screeninfo __devinitdata rivafb_fix = {
228 .type = FB_TYPE_PACKED_PIXELS,
233 static struct fb_var_screeninfo __devinitdata rivafb_default_var = {
243 .activate = FB_ACTIVATE_NOW,
253 .vmode = FB_VMODE_NONINTERLACED
257 static const struct riva_regs reg_template = {
258 {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* ATTR */
259 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
260 0x41, 0x01, 0x0F, 0x00, 0x00},
261 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* CRT */
262 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00,
263 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, /* 0x10 */
264 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
265 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20 */
266 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
267 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30 */
268 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
271 {0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, /* GRA */
273 {0x03, 0x01, 0x0F, 0x00, 0x0E}, /* SEQ */
280 #ifdef CONFIG_FB_RIVA_BACKLIGHT
281 /* We do not have any information about which values are allowed, thus
282 * we used safe values.
284 #define MIN_LEVEL 0x158
285 #define MAX_LEVEL 0x534
286 #define LEVEL_STEP ((MAX_LEVEL - MIN_LEVEL) / FB_BACKLIGHT_MAX)
288 static struct backlight_properties riva_bl_data;
290 static int riva_bl_get_level_brightness(struct riva_par *par,
293 struct fb_info *info = pci_get_drvdata(par->pdev);
296 /* Get and convert the value */
297 /* No locking on bl_curve since accessing a single value */
298 nlevel = MIN_LEVEL + info->bl_curve[level] * LEVEL_STEP;
302 else if (nlevel < MIN_LEVEL)
304 else if (nlevel > MAX_LEVEL)
310 static int riva_bl_update_status(struct backlight_device *bd)
312 struct riva_par *par = class_get_devdata(&bd->class_dev);
313 U032 tmp_pcrt, tmp_pmc;
316 if (bd->props.power != FB_BLANK_UNBLANK ||
317 bd->props.fb_blank != FB_BLANK_UNBLANK)
320 level = bd->props.brightness;
322 tmp_pmc = par->riva.PMC[0x10F0/4] & 0x0000FFFF;
323 tmp_pcrt = par->riva.PCRTC0[0x081C/4] & 0xFFFFFFFC;
326 tmp_pmc |= (1 << 31); /* backlight bit */
327 tmp_pmc |= riva_bl_get_level_brightness(par, level) << 16; /* level */
329 par->riva.PCRTC0[0x081C/4] = tmp_pcrt;
330 par->riva.PMC[0x10F0/4] = tmp_pmc;
335 static int riva_bl_get_brightness(struct backlight_device *bd)
337 return bd->props.brightness;
340 static struct backlight_ops riva_bl_ops = {
341 .get_brightness = riva_bl_get_brightness,
342 .update_status = riva_bl_update_status,
345 static void riva_bl_init(struct riva_par *par)
347 struct fb_info *info = pci_get_drvdata(par->pdev);
348 struct backlight_device *bd;
354 #ifdef CONFIG_PMAC_BACKLIGHT
355 if (!machine_is(powermac) ||
356 !pmac_has_backlight_type("mnca"))
360 snprintf(name, sizeof(name), "rivabl%d", info->node);
362 bd = backlight_device_register(name, info->dev, par, &riva_bl_ops);
365 printk(KERN_WARNING "riva: Backlight registration failed\n");
370 fb_bl_default_curve(info, 0,
371 MIN_LEVEL * FB_BACKLIGHT_MAX / MAX_LEVEL,
374 bd->props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
375 bd->props.brightness = riva_bl_data.max_brightness;
376 bd->props.power = FB_BLANK_UNBLANK;
377 backlight_update_status(bd);
379 printk("riva: Backlight initialized (%s)\n", name);
387 static void riva_bl_exit(struct fb_info *info)
389 struct backlight_device *bd = info->bl_dev;
391 backlight_device_unregister(bd);
392 printk("riva: Backlight unloaded\n");
395 static inline void riva_bl_init(struct riva_par *par) {}
396 static inline void riva_bl_exit(struct fb_info *info) {}
397 #endif /* CONFIG_FB_RIVA_BACKLIGHT */
399 /* ------------------------------------------------------------------------- *
403 * ------------------------------------------------------------------------- */
405 static inline void CRTCout(struct riva_par *par, unsigned char index,
408 VGA_WR08(par->riva.PCIO, 0x3d4, index);
409 VGA_WR08(par->riva.PCIO, 0x3d5, val);
412 static inline unsigned char CRTCin(struct riva_par *par,
415 VGA_WR08(par->riva.PCIO, 0x3d4, index);
416 return (VGA_RD08(par->riva.PCIO, 0x3d5));
419 static inline void GRAout(struct riva_par *par, unsigned char index,
422 VGA_WR08(par->riva.PVIO, 0x3ce, index);
423 VGA_WR08(par->riva.PVIO, 0x3cf, val);
426 static inline unsigned char GRAin(struct riva_par *par,
429 VGA_WR08(par->riva.PVIO, 0x3ce, index);
430 return (VGA_RD08(par->riva.PVIO, 0x3cf));
433 static inline void SEQout(struct riva_par *par, unsigned char index,
436 VGA_WR08(par->riva.PVIO, 0x3c4, index);
437 VGA_WR08(par->riva.PVIO, 0x3c5, val);
440 static inline unsigned char SEQin(struct riva_par *par,
443 VGA_WR08(par->riva.PVIO, 0x3c4, index);
444 return (VGA_RD08(par->riva.PVIO, 0x3c5));
447 static inline void ATTRout(struct riva_par *par, unsigned char index,
450 VGA_WR08(par->riva.PCIO, 0x3c0, index);
451 VGA_WR08(par->riva.PCIO, 0x3c0, val);
454 static inline unsigned char ATTRin(struct riva_par *par,
457 VGA_WR08(par->riva.PCIO, 0x3c0, index);
458 return (VGA_RD08(par->riva.PCIO, 0x3c1));
461 static inline void MISCout(struct riva_par *par, unsigned char val)
463 VGA_WR08(par->riva.PVIO, 0x3c2, val);
466 static inline unsigned char MISCin(struct riva_par *par)
468 return (VGA_RD08(par->riva.PVIO, 0x3cc));
471 static inline void reverse_order(u32 *l)
474 a[0] = bitrev8(a[0]);
475 a[1] = bitrev8(a[1]);
476 a[2] = bitrev8(a[2]);
477 a[3] = bitrev8(a[3]);
480 /* ------------------------------------------------------------------------- *
484 * ------------------------------------------------------------------------- */
487 * rivafb_load_cursor_image - load cursor image to hardware
488 * @data: address to monochrome bitmap (1 = foreground color, 0 = background)
489 * @par: pointer to private data
490 * @w: width of cursor image in pixels
491 * @h: height of cursor image in scanlines
492 * @bg: background color (ARGB1555) - alpha bit determines opacity
493 * @fg: foreground color (ARGB1555)
496 * Loads cursor image based on a monochrome source and mask bitmap. The
497 * image bits determines the color of the pixel, 0 for background, 1 for
498 * foreground. Only the affected region (as determined by @w and @h
499 * parameters) will be updated.
504 static void rivafb_load_cursor_image(struct riva_par *par, u8 *data8,
505 u16 bg, u16 fg, u32 w, u32 h)
509 u32 *data = (u32 *)data8;
510 bg = le16_to_cpu(bg);
511 fg = le16_to_cpu(fg);
515 for (i = 0; i < h; i++) {
519 for (j = 0; j < w/2; j++) {
521 #if defined (__BIG_ENDIAN)
522 tmp = (b & (1 << 31)) ? fg << 16 : bg << 16;
524 tmp |= (b & (1 << 31)) ? fg : bg;
527 tmp = (b & 1) ? fg : bg;
529 tmp |= (b & 1) ? fg << 16 : bg << 16;
532 writel(tmp, &par->riva.CURSOR[k++]);
534 k += (MAX_CURS - w)/2;
538 /* ------------------------------------------------------------------------- *
540 * general utility functions
542 * ------------------------------------------------------------------------- */
545 * riva_wclut - set CLUT entry
546 * @chip: pointer to RIVA_HW_INST object
547 * @regnum: register number
548 * @red: red component
549 * @green: green component
550 * @blue: blue component
553 * Sets color register @regnum.
558 static void riva_wclut(RIVA_HW_INST *chip,
559 unsigned char regnum, unsigned char red,
560 unsigned char green, unsigned char blue)
562 VGA_WR08(chip->PDIO, 0x3c8, regnum);
563 VGA_WR08(chip->PDIO, 0x3c9, red);
564 VGA_WR08(chip->PDIO, 0x3c9, green);
565 VGA_WR08(chip->PDIO, 0x3c9, blue);
569 * riva_rclut - read fromCLUT register
570 * @chip: pointer to RIVA_HW_INST object
571 * @regnum: register number
572 * @red: red component
573 * @green: green component
574 * @blue: blue component
577 * Reads red, green, and blue from color register @regnum.
582 static void riva_rclut(RIVA_HW_INST *chip,
583 unsigned char regnum, unsigned char *red,
584 unsigned char *green, unsigned char *blue)
587 VGA_WR08(chip->PDIO, 0x3c7, regnum);
588 *red = VGA_RD08(chip->PDIO, 0x3c9);
589 *green = VGA_RD08(chip->PDIO, 0x3c9);
590 *blue = VGA_RD08(chip->PDIO, 0x3c9);
594 * riva_save_state - saves current chip state
595 * @par: pointer to riva_par object containing info for current riva board
596 * @regs: pointer to riva_regs object
599 * Saves current chip state to @regs.
605 static void riva_save_state(struct riva_par *par, struct riva_regs *regs)
610 par->riva.LockUnlock(&par->riva, 0);
612 par->riva.UnloadStateExt(&par->riva, ®s->ext);
614 regs->misc_output = MISCin(par);
616 for (i = 0; i < NUM_CRT_REGS; i++)
617 regs->crtc[i] = CRTCin(par, i);
619 for (i = 0; i < NUM_ATC_REGS; i++)
620 regs->attr[i] = ATTRin(par, i);
622 for (i = 0; i < NUM_GRC_REGS; i++)
623 regs->gra[i] = GRAin(par, i);
625 for (i = 0; i < NUM_SEQ_REGS; i++)
626 regs->seq[i] = SEQin(par, i);
631 * riva_load_state - loads current chip state
632 * @par: pointer to riva_par object containing info for current riva board
633 * @regs: pointer to riva_regs object
636 * Loads chip state from @regs.
639 * riva_load_video_mode()
644 static void riva_load_state(struct riva_par *par, struct riva_regs *regs)
646 RIVA_HW_STATE *state = ®s->ext;
650 CRTCout(par, 0x11, 0x00);
652 par->riva.LockUnlock(&par->riva, 0);
654 par->riva.LoadStateExt(&par->riva, state);
656 MISCout(par, regs->misc_output);
658 for (i = 0; i < NUM_CRT_REGS; i++) {
664 CRTCout(par, i, regs->crtc[i]);
668 for (i = 0; i < NUM_ATC_REGS; i++)
669 ATTRout(par, i, regs->attr[i]);
671 for (i = 0; i < NUM_GRC_REGS; i++)
672 GRAout(par, i, regs->gra[i]);
674 for (i = 0; i < NUM_SEQ_REGS; i++)
675 SEQout(par, i, regs->seq[i]);
680 * riva_load_video_mode - calculate timings
681 * @info: pointer to fb_info object containing info for current riva board
684 * Calculate some timings and then send em off to riva_load_state().
689 static int riva_load_video_mode(struct fb_info *info)
691 int bpp, width, hDisplaySize, hDisplay, hStart,
692 hEnd, hTotal, height, vDisplay, vStart, vEnd, vTotal, dotClock;
693 int hBlankStart, hBlankEnd, vBlankStart, vBlankEnd;
695 struct riva_par *par = info->par;
696 struct riva_regs newmode;
699 /* time to calculate */
700 rivafb_blank(FB_BLANK_NORMAL, info);
702 bpp = info->var.bits_per_pixel;
703 if (bpp == 16 && info->var.green.length == 5)
705 width = info->var.xres_virtual;
706 hDisplaySize = info->var.xres;
707 hDisplay = (hDisplaySize / 8) - 1;
708 hStart = (hDisplaySize + info->var.right_margin) / 8 - 1;
709 hEnd = (hDisplaySize + info->var.right_margin +
710 info->var.hsync_len) / 8 - 1;
711 hTotal = (hDisplaySize + info->var.right_margin +
712 info->var.hsync_len + info->var.left_margin) / 8 - 5;
713 hBlankStart = hDisplay;
714 hBlankEnd = hTotal + 4;
716 height = info->var.yres_virtual;
717 vDisplay = info->var.yres - 1;
718 vStart = info->var.yres + info->var.lower_margin - 1;
719 vEnd = info->var.yres + info->var.lower_margin +
720 info->var.vsync_len - 1;
721 vTotal = info->var.yres + info->var.lower_margin +
722 info->var.vsync_len + info->var.upper_margin + 2;
723 vBlankStart = vDisplay;
724 vBlankEnd = vTotal + 1;
725 dotClock = 1000000000 / info->var.pixclock;
727 memcpy(&newmode, ®_template, sizeof(struct riva_regs));
729 if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED)
732 if (par->FlatPanel) {
735 vBlankStart = vStart;
738 hBlankEnd = hTotal + 4;
741 newmode.crtc[0x0] = Set8Bits (hTotal);
742 newmode.crtc[0x1] = Set8Bits (hDisplay);
743 newmode.crtc[0x2] = Set8Bits (hBlankStart);
744 newmode.crtc[0x3] = SetBitField (hBlankEnd, 4: 0, 4:0) | SetBit (7);
745 newmode.crtc[0x4] = Set8Bits (hStart);
746 newmode.crtc[0x5] = SetBitField (hBlankEnd, 5: 5, 7:7)
747 | SetBitField (hEnd, 4: 0, 4:0);
748 newmode.crtc[0x6] = SetBitField (vTotal, 7: 0, 7:0);
749 newmode.crtc[0x7] = SetBitField (vTotal, 8: 8, 0:0)
750 | SetBitField (vDisplay, 8: 8, 1:1)
751 | SetBitField (vStart, 8: 8, 2:2)
752 | SetBitField (vBlankStart, 8: 8, 3:3)
754 | SetBitField (vTotal, 9: 9, 5:5)
755 | SetBitField (vDisplay, 9: 9, 6:6)
756 | SetBitField (vStart, 9: 9, 7:7);
757 newmode.crtc[0x9] = SetBitField (vBlankStart, 9: 9, 5:5)
759 newmode.crtc[0x10] = Set8Bits (vStart);
760 newmode.crtc[0x11] = SetBitField (vEnd, 3: 0, 3:0)
762 newmode.crtc[0x12] = Set8Bits (vDisplay);
763 newmode.crtc[0x13] = (width / 8) * ((bpp + 1) / 8);
764 newmode.crtc[0x15] = Set8Bits (vBlankStart);
765 newmode.crtc[0x16] = Set8Bits (vBlankEnd);
767 newmode.ext.screen = SetBitField(hBlankEnd,6:6,4:4)
768 | SetBitField(vBlankStart,10:10,3:3)
769 | SetBitField(vStart,10:10,2:2)
770 | SetBitField(vDisplay,10:10,1:1)
771 | SetBitField(vTotal,10:10,0:0);
772 newmode.ext.horiz = SetBitField(hTotal,8:8,0:0)
773 | SetBitField(hDisplay,8:8,1:1)
774 | SetBitField(hBlankStart,8:8,2:2)
775 | SetBitField(hStart,8:8,3:3);
776 newmode.ext.extra = SetBitField(vTotal,11:11,0:0)
777 | SetBitField(vDisplay,11:11,2:2)
778 | SetBitField(vStart,11:11,4:4)
779 | SetBitField(vBlankStart,11:11,6:6);
781 if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
782 int tmp = (hTotal >> 1) & ~1;
783 newmode.ext.interlace = Set8Bits(tmp);
784 newmode.ext.horiz |= SetBitField(tmp, 8:8,4:4);
786 newmode.ext.interlace = 0xff; /* interlace off */
788 if (par->riva.Architecture >= NV_ARCH_10)
789 par->riva.CURSOR = (U032 __iomem *)(info->screen_base + par->riva.CursorStart);
791 if (info->var.sync & FB_SYNC_HOR_HIGH_ACT)
792 newmode.misc_output &= ~0x40;
794 newmode.misc_output |= 0x40;
795 if (info->var.sync & FB_SYNC_VERT_HIGH_ACT)
796 newmode.misc_output &= ~0x80;
798 newmode.misc_output |= 0x80;
800 rc = CalcStateExt(&par->riva, &newmode.ext, bpp, width,
801 hDisplaySize, height, dotClock);
805 newmode.ext.scale = NV_RD32(par->riva.PRAMDAC, 0x00000848) &
807 if (par->FlatPanel == 1) {
808 newmode.ext.pixel |= (1 << 7);
809 newmode.ext.scale |= (1 << 8);
811 if (par->SecondCRTC) {
812 newmode.ext.head = NV_RD32(par->riva.PCRTC0, 0x00000860) &
814 newmode.ext.head2 = NV_RD32(par->riva.PCRTC0, 0x00002860) |
816 newmode.ext.crtcOwner = 3;
817 newmode.ext.pllsel |= 0x20000800;
818 newmode.ext.vpll2 = newmode.ext.vpll;
819 } else if (par->riva.twoHeads) {
820 newmode.ext.head = NV_RD32(par->riva.PCRTC0, 0x00000860) |
822 newmode.ext.head2 = NV_RD32(par->riva.PCRTC0, 0x00002860) &
824 newmode.ext.crtcOwner = 0;
825 newmode.ext.vpll2 = NV_RD32(par->riva.PRAMDAC0, 0x00000520);
827 if (par->FlatPanel == 1) {
828 newmode.ext.pixel |= (1 << 7);
829 newmode.ext.scale |= (1 << 8);
831 newmode.ext.cursorConfig = 0x02000100;
832 par->current_state = newmode;
833 riva_load_state(par, &par->current_state);
834 par->riva.LockUnlock(&par->riva, 0); /* important for HW cursor */
837 rivafb_blank(FB_BLANK_UNBLANK, info);
843 static void riva_update_var(struct fb_var_screeninfo *var,
844 const struct fb_videomode *modedb)
847 var->xres = var->xres_virtual = modedb->xres;
848 var->yres = modedb->yres;
849 if (var->yres_virtual < var->yres)
850 var->yres_virtual = var->yres;
851 var->xoffset = var->yoffset = 0;
852 var->pixclock = modedb->pixclock;
853 var->left_margin = modedb->left_margin;
854 var->right_margin = modedb->right_margin;
855 var->upper_margin = modedb->upper_margin;
856 var->lower_margin = modedb->lower_margin;
857 var->hsync_len = modedb->hsync_len;
858 var->vsync_len = modedb->vsync_len;
859 var->sync = modedb->sync;
860 var->vmode = modedb->vmode;
865 * rivafb_do_maximize -
866 * @info: pointer to fb_info object containing info for current riva board
875 * -EINVAL on failure, 0 on success
881 static int rivafb_do_maximize(struct fb_info *info,
882 struct fb_var_screeninfo *var,
898 /* use highest possible virtual resolution */
899 if (var->xres_virtual == -1 && var->yres_virtual == -1) {
900 printk(KERN_WARNING PFX
901 "using maximum available virtual resolution\n");
902 for (i = 0; modes[i].xres != -1; i++) {
903 if (modes[i].xres * nom / den * modes[i].yres <
907 if (modes[i].xres == -1) {
909 "could not find a virtual resolution that fits into video memory!!\n");
910 NVTRACE("EXIT - EINVAL error\n");
913 var->xres_virtual = modes[i].xres;
914 var->yres_virtual = modes[i].yres;
917 "virtual resolution set to maximum of %dx%d\n",
918 var->xres_virtual, var->yres_virtual);
919 } else if (var->xres_virtual == -1) {
920 var->xres_virtual = (info->fix.smem_len * den /
921 (nom * var->yres_virtual)) & ~15;
922 printk(KERN_WARNING PFX
923 "setting virtual X resolution to %d\n", var->xres_virtual);
924 } else if (var->yres_virtual == -1) {
925 var->xres_virtual = (var->xres_virtual + 15) & ~15;
926 var->yres_virtual = info->fix.smem_len * den /
927 (nom * var->xres_virtual);
928 printk(KERN_WARNING PFX
929 "setting virtual Y resolution to %d\n", var->yres_virtual);
931 var->xres_virtual = (var->xres_virtual + 15) & ~15;
932 if (var->xres_virtual * nom / den * var->yres_virtual > info->fix.smem_len) {
934 "mode %dx%dx%d rejected...resolution too high to fit into video memory!\n",
935 var->xres, var->yres, var->bits_per_pixel);
936 NVTRACE("EXIT - EINVAL error\n");
941 if (var->xres_virtual * nom / den >= 8192) {
942 printk(KERN_WARNING PFX
943 "virtual X resolution (%d) is too high, lowering to %d\n",
944 var->xres_virtual, 8192 * den / nom - 16);
945 var->xres_virtual = 8192 * den / nom - 16;
948 if (var->xres_virtual < var->xres) {
950 "virtual X resolution (%d) is smaller than real\n", var->xres_virtual);
954 if (var->yres_virtual < var->yres) {
956 "virtual Y resolution (%d) is smaller than real\n", var->yres_virtual);
959 if (var->yres_virtual > 0x7fff/nom)
960 var->yres_virtual = 0x7fff/nom;
961 if (var->xres_virtual > 0x7fff/nom)
962 var->xres_virtual = 0x7fff/nom;
968 riva_set_pattern(struct riva_par *par, int clr0, int clr1, int pat0, int pat1)
970 RIVA_FIFO_FREE(par->riva, Patt, 4);
971 NV_WR32(&par->riva.Patt->Color0, 0, clr0);
972 NV_WR32(&par->riva.Patt->Color1, 0, clr1);
973 NV_WR32(par->riva.Patt->Monochrome, 0, pat0);
974 NV_WR32(par->riva.Patt->Monochrome, 4, pat1);
977 /* acceleration routines */
978 static inline void wait_for_idle(struct riva_par *par)
980 while (par->riva.Busy(&par->riva));
984 * Set ROP. Translate X rop into ROP3. Internal routine.
987 riva_set_rop_solid(struct riva_par *par, int rop)
989 riva_set_pattern(par, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
990 RIVA_FIFO_FREE(par->riva, Rop, 1);
991 NV_WR32(&par->riva.Rop->Rop3, 0, rop);
995 static void riva_setup_accel(struct fb_info *info)
997 struct riva_par *par = info->par;
999 RIVA_FIFO_FREE(par->riva, Clip, 2);
1000 NV_WR32(&par->riva.Clip->TopLeft, 0, 0x0);
1001 NV_WR32(&par->riva.Clip->WidthHeight, 0,
1002 (info->var.xres_virtual & 0xffff) |
1003 (info->var.yres_virtual << 16));
1004 riva_set_rop_solid(par, 0xcc);
1009 * riva_get_cmap_len - query current color map length
1010 * @var: standard kernel fb changeable data
1013 * Get current color map length.
1016 * Length of color map
1019 * rivafb_setcolreg()
1021 static int riva_get_cmap_len(const struct fb_var_screeninfo *var)
1023 int rc = 256; /* reasonable default */
1025 switch (var->green.length) {
1027 rc = 256; /* 256 entries (2^8), 8 bpp and RGB8888 */
1030 rc = 32; /* 32 entries (2^5), 16 bpp, RGB555 */
1033 rc = 64; /* 64 entries (2^6), 16 bpp, RGB565 */
1036 /* should not occur */
1042 /* ------------------------------------------------------------------------- *
1044 * framebuffer operations
1046 * ------------------------------------------------------------------------- */
1048 static int rivafb_open(struct fb_info *info, int user)
1050 struct riva_par *par = info->par;
1053 mutex_lock(&par->open_lock);
1054 if (!par->ref_count) {
1056 memset(&par->state, 0, sizeof(struct vgastate));
1057 par->state.flags = VGA_SAVE_MODE | VGA_SAVE_FONTS;
1058 /* save the DAC for Riva128 */
1059 if (par->riva.Architecture == NV_ARCH_03)
1060 par->state.flags |= VGA_SAVE_CMAP;
1061 save_vga(&par->state);
1063 /* vgaHWunlock() + riva unlock (0x7F) */
1064 CRTCout(par, 0x11, 0xFF);
1065 par->riva.LockUnlock(&par->riva, 0);
1067 riva_save_state(par, &par->initial_state);
1070 mutex_unlock(&par->open_lock);
1075 static int rivafb_release(struct fb_info *info, int user)
1077 struct riva_par *par = info->par;
1080 mutex_lock(&par->open_lock);
1081 if (!par->ref_count) {
1082 mutex_unlock(&par->open_lock);
1085 if (par->ref_count == 1) {
1086 par->riva.LockUnlock(&par->riva, 0);
1087 par->riva.LoadStateExt(&par->riva, &par->initial_state.ext);
1088 riva_load_state(par, &par->initial_state);
1090 restore_vga(&par->state);
1092 par->riva.LockUnlock(&par->riva, 1);
1095 mutex_unlock(&par->open_lock);
1100 static int rivafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1102 const struct fb_videomode *mode;
1103 struct riva_par *par = info->par;
1104 int nom, den; /* translating from pixels->bytes */
1108 switch (var->bits_per_pixel) {
1110 var->red.offset = var->green.offset = var->blue.offset = 0;
1111 var->red.length = var->green.length = var->blue.length = 8;
1112 var->bits_per_pixel = 8;
1116 var->green.length = 5;
1119 var->bits_per_pixel = 16;
1120 /* The Riva128 supports RGB555 only */
1121 if (par->riva.Architecture == NV_ARCH_03)
1122 var->green.length = 5;
1123 if (var->green.length == 5) {
1124 /* 0rrrrrgg gggbbbbb */
1125 var->red.offset = 10;
1126 var->green.offset = 5;
1127 var->blue.offset = 0;
1128 var->red.length = 5;
1129 var->green.length = 5;
1130 var->blue.length = 5;
1132 /* rrrrrggg gggbbbbb */
1133 var->red.offset = 11;
1134 var->green.offset = 5;
1135 var->blue.offset = 0;
1136 var->red.length = 5;
1137 var->green.length = 6;
1138 var->blue.length = 5;
1144 var->red.length = var->green.length = var->blue.length = 8;
1145 var->bits_per_pixel = 32;
1146 var->red.offset = 16;
1147 var->green.offset = 8;
1148 var->blue.offset = 0;
1154 "mode %dx%dx%d rejected...color depth not supported.\n",
1155 var->xres, var->yres, var->bits_per_pixel);
1156 NVTRACE("EXIT, returning -EINVAL\n");
1161 if (!info->monspecs.vfmax || !info->monspecs.hfmax ||
1162 !info->monspecs.dclkmax || !fb_validate_mode(var, info))
1166 /* calculate modeline if supported by monitor */
1167 if (!mode_valid && info->monspecs.gtf) {
1168 if (!fb_get_mode(FB_MAXTIMINGS, 0, var, info))
1173 mode = fb_find_best_mode(var, &info->modelist);
1175 riva_update_var(var, mode);
1180 if (!mode_valid && info->monspecs.modedb_len)
1183 if (var->xres_virtual < var->xres)
1184 var->xres_virtual = var->xres;
1185 if (var->yres_virtual <= var->yres)
1186 var->yres_virtual = -1;
1187 if (rivafb_do_maximize(info, var, nom, den) < 0)
1190 if (var->xoffset < 0)
1192 if (var->yoffset < 0)
1195 /* truncate xoffset and yoffset to maximum if too high */
1196 if (var->xoffset > var->xres_virtual - var->xres)
1197 var->xoffset = var->xres_virtual - var->xres - 1;
1199 if (var->yoffset > var->yres_virtual - var->yres)
1200 var->yoffset = var->yres_virtual - var->yres - 1;
1202 var->red.msb_right =
1203 var->green.msb_right =
1204 var->blue.msb_right =
1205 var->transp.offset = var->transp.length = var->transp.msb_right = 0;
1210 static int rivafb_set_par(struct fb_info *info)
1212 struct riva_par *par = info->par;
1216 /* vgaHWunlock() + riva unlock (0x7F) */
1217 CRTCout(par, 0x11, 0xFF);
1218 par->riva.LockUnlock(&par->riva, 0);
1219 rc = riva_load_video_mode(info);
1222 if(!(info->flags & FBINFO_HWACCEL_DISABLED))
1223 riva_setup_accel(info);
1225 par->cursor_reset = 1;
1226 info->fix.line_length = (info->var.xres_virtual * (info->var.bits_per_pixel >> 3));
1227 info->fix.visual = (info->var.bits_per_pixel == 8) ?
1228 FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
1230 if (info->flags & FBINFO_HWACCEL_DISABLED)
1231 info->pixmap.scan_align = 1;
1233 info->pixmap.scan_align = 4;
1241 * rivafb_pan_display
1242 * @var: standard kernel fb changeable data
1244 * @info: pointer to fb_info object containing info for current riva board
1247 * Pan (or wrap, depending on the `vmode' field) the display using the
1248 * `xoffset' and `yoffset' fields of the `var' structure.
1249 * If the values don't fit, return -EINVAL.
1251 * This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag
1253 static int rivafb_pan_display(struct fb_var_screeninfo *var,
1254 struct fb_info *info)
1256 struct riva_par *par = info->par;
1260 base = var->yoffset * info->fix.line_length + var->xoffset;
1261 par->riva.SetStartAddress(&par->riva, base);
1266 static int rivafb_blank(int blank, struct fb_info *info)
1268 struct riva_par *par= info->par;
1269 unsigned char tmp, vesa;
1271 tmp = SEQin(par, 0x01) & ~0x20; /* screen on/off */
1272 vesa = CRTCin(par, 0x1a) & ~0xc0; /* sync on/off */
1280 case FB_BLANK_UNBLANK:
1281 case FB_BLANK_NORMAL:
1283 case FB_BLANK_VSYNC_SUSPEND:
1286 case FB_BLANK_HSYNC_SUSPEND:
1289 case FB_BLANK_POWERDOWN:
1294 SEQout(par, 0x01, tmp);
1295 CRTCout(par, 0x1a, vesa);
1304 * @regno: register index
1305 * @red: red component
1306 * @green: green component
1307 * @blue: blue component
1308 * @transp: transparency
1309 * @info: pointer to fb_info object containing info for current riva board
1312 * Set a single color register. The values supplied have a 16 bit
1316 * Return != 0 for invalid regno.
1319 * fbcmap.c:fb_set_cmap()
1321 static int rivafb_setcolreg(unsigned regno, unsigned red, unsigned green,
1322 unsigned blue, unsigned transp,
1323 struct fb_info *info)
1325 struct riva_par *par = info->par;
1326 RIVA_HW_INST *chip = &par->riva;
1329 if (regno >= riva_get_cmap_len(&info->var))
1332 if (info->var.grayscale) {
1333 /* gray = 0.30*R + 0.59*G + 0.11*B */
1334 red = green = blue =
1335 (red * 77 + green * 151 + blue * 28) >> 8;
1338 if (regno < 16 && info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
1339 ((u32 *) info->pseudo_palette)[regno] =
1340 (regno << info->var.red.offset) |
1341 (regno << info->var.green.offset) |
1342 (regno << info->var.blue.offset);
1344 * The Riva128 2D engine requires color information in
1345 * TrueColor format even if framebuffer is in DirectColor
1347 if (par->riva.Architecture == NV_ARCH_03) {
1348 switch (info->var.bits_per_pixel) {
1350 par->palette[regno] = ((red & 0xf800) >> 1) |
1351 ((green & 0xf800) >> 6) |
1352 ((blue & 0xf800) >> 11);
1355 par->palette[regno] = ((red & 0xff00) << 8) |
1356 ((green & 0xff00)) |
1357 ((blue & 0xff00) >> 8);
1363 switch (info->var.bits_per_pixel) {
1365 /* "transparent" stuff is completely ignored. */
1366 riva_wclut(chip, regno, red >> 8, green >> 8, blue >> 8);
1369 if (info->var.green.length == 5) {
1370 for (i = 0; i < 8; i++) {
1371 riva_wclut(chip, regno*8+i, red >> 8,
1372 green >> 8, blue >> 8);
1378 for (i = 0; i < 8; i++) {
1379 riva_wclut(chip, regno*8+i,
1380 red >> 8, green >> 8,
1384 riva_rclut(chip, regno*4, &r, &g, &b);
1385 for (i = 0; i < 4; i++)
1386 riva_wclut(chip, regno*4+i, r,
1391 riva_wclut(chip, regno, red >> 8, green >> 8, blue >> 8);
1401 * rivafb_fillrect - hardware accelerated color fill function
1402 * @info: pointer to fb_info structure
1403 * @rect: pointer to fb_fillrect structure
1406 * This function fills up a region of framebuffer memory with a solid
1407 * color with a choice of two different ROP's, copy or invert.
1412 static void rivafb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
1414 struct riva_par *par = info->par;
1415 u_int color, rop = 0;
1417 if ((info->flags & FBINFO_HWACCEL_DISABLED)) {
1418 cfb_fillrect(info, rect);
1422 if (info->var.bits_per_pixel == 8)
1423 color = rect->color;
1425 if (par->riva.Architecture != NV_ARCH_03)
1426 color = ((u32 *)info->pseudo_palette)[rect->color];
1428 color = par->palette[rect->color];
1431 switch (rect->rop) {
1441 riva_set_rop_solid(par, rop);
1443 RIVA_FIFO_FREE(par->riva, Bitmap, 1);
1444 NV_WR32(&par->riva.Bitmap->Color1A, 0, color);
1446 RIVA_FIFO_FREE(par->riva, Bitmap, 2);
1447 NV_WR32(&par->riva.Bitmap->UnclippedRectangle[0].TopLeft, 0,
1448 (rect->dx << 16) | rect->dy);
1450 NV_WR32(&par->riva.Bitmap->UnclippedRectangle[0].WidthHeight, 0,
1451 (rect->width << 16) | rect->height);
1453 riva_set_rop_solid(par, 0xcc);
1458 * rivafb_copyarea - hardware accelerated blit function
1459 * @info: pointer to fb_info structure
1460 * @region: pointer to fb_copyarea structure
1463 * This copies an area of pixels from one location to another
1468 static void rivafb_copyarea(struct fb_info *info, const struct fb_copyarea *region)
1470 struct riva_par *par = info->par;
1472 if ((info->flags & FBINFO_HWACCEL_DISABLED)) {
1473 cfb_copyarea(info, region);
1477 RIVA_FIFO_FREE(par->riva, Blt, 3);
1478 NV_WR32(&par->riva.Blt->TopLeftSrc, 0,
1479 (region->sy << 16) | region->sx);
1480 NV_WR32(&par->riva.Blt->TopLeftDst, 0,
1481 (region->dy << 16) | region->dx);
1483 NV_WR32(&par->riva.Blt->WidthHeight, 0,
1484 (region->height << 16) | region->width);
1488 static inline void convert_bgcolor_16(u32 *col)
1490 *col = ((*col & 0x0000F800) << 8)
1491 | ((*col & 0x00007E0) << 5)
1492 | ((*col & 0x0000001F) << 3)
1498 * rivafb_imageblit: hardware accelerated color expand function
1499 * @info: pointer to fb_info structure
1500 * @image: pointer to fb_image structure
1503 * If the source is a monochrome bitmap, the function fills up a a region
1504 * of framebuffer memory with pixels whose color is determined by the bit
1505 * setting of the bitmap, 1 - foreground, 0 - background.
1507 * If the source is not a monochrome bitmap, color expansion is not done.
1508 * In this case, it is channeled to a software function.
1513 static void rivafb_imageblit(struct fb_info *info,
1514 const struct fb_image *image)
1516 struct riva_par *par = info->par;
1517 u32 fgx = 0, bgx = 0, width, tmp;
1518 u8 *cdat = (u8 *) image->data;
1519 volatile u32 __iomem *d;
1522 if ((info->flags & FBINFO_HWACCEL_DISABLED) || image->depth != 1) {
1523 cfb_imageblit(info, image);
1527 switch (info->var.bits_per_pixel) {
1529 fgx = image->fg_color;
1530 bgx = image->bg_color;
1534 if (par->riva.Architecture != NV_ARCH_03) {
1535 fgx = ((u32 *)info->pseudo_palette)[image->fg_color];
1536 bgx = ((u32 *)info->pseudo_palette)[image->bg_color];
1538 fgx = par->palette[image->fg_color];
1539 bgx = par->palette[image->bg_color];
1541 if (info->var.green.length == 6)
1542 convert_bgcolor_16(&bgx);
1546 RIVA_FIFO_FREE(par->riva, Bitmap, 7);
1547 NV_WR32(&par->riva.Bitmap->ClipE.TopLeft, 0,
1548 (image->dy << 16) | (image->dx & 0xFFFF));
1549 NV_WR32(&par->riva.Bitmap->ClipE.BottomRight, 0,
1550 (((image->dy + image->height) << 16) |
1551 ((image->dx + image->width) & 0xffff)));
1552 NV_WR32(&par->riva.Bitmap->Color0E, 0, bgx);
1553 NV_WR32(&par->riva.Bitmap->Color1E, 0, fgx);
1554 NV_WR32(&par->riva.Bitmap->WidthHeightInE, 0,
1555 (image->height << 16) | ((image->width + 31) & ~31));
1556 NV_WR32(&par->riva.Bitmap->WidthHeightOutE, 0,
1557 (image->height << 16) | ((image->width + 31) & ~31));
1558 NV_WR32(&par->riva.Bitmap->PointE, 0,
1559 (image->dy << 16) | (image->dx & 0xFFFF));
1561 d = &par->riva.Bitmap->MonochromeData01E;
1563 width = (image->width + 31)/32;
1564 size = width * image->height;
1565 while (size >= 16) {
1566 RIVA_FIFO_FREE(par->riva, Bitmap, 16);
1567 for (i = 0; i < 16; i++) {
1568 tmp = *((u32 *)cdat);
1569 cdat = (u8 *)((u32 *)cdat + 1);
1570 reverse_order(&tmp);
1571 NV_WR32(d, i*4, tmp);
1576 RIVA_FIFO_FREE(par->riva, Bitmap, size);
1577 for (i = 0; i < size; i++) {
1578 tmp = *((u32 *) cdat);
1579 cdat = (u8 *)((u32 *)cdat + 1);
1580 reverse_order(&tmp);
1581 NV_WR32(d, i*4, tmp);
1587 * rivafb_cursor - hardware cursor function
1588 * @info: pointer to info structure
1589 * @cursor: pointer to fbcursor structure
1592 * A cursor function that supports displaying a cursor image via hardware.
1593 * Within the kernel, copy and invert rops are supported. If exported
1594 * to user space, only the copy rop will be supported.
1599 static int rivafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
1601 struct riva_par *par = info->par;
1602 u8 data[MAX_CURS * MAX_CURS/8];
1603 int i, set = cursor->set;
1606 if (cursor->image.width > MAX_CURS || cursor->image.height > MAX_CURS)
1609 par->riva.ShowHideCursor(&par->riva, 0);
1611 if (par->cursor_reset) {
1612 set = FB_CUR_SETALL;
1613 par->cursor_reset = 0;
1616 if (set & FB_CUR_SETSIZE)
1617 memset_io(par->riva.CURSOR, 0, MAX_CURS * MAX_CURS * 2);
1619 if (set & FB_CUR_SETPOS) {
1622 yy = cursor->image.dy - info->var.yoffset;
1623 xx = cursor->image.dx - info->var.xoffset;
1627 NV_WR32(par->riva.PRAMDAC, 0x0000300, temp);
1631 if (set & (FB_CUR_SETSHAPE | FB_CUR_SETCMAP | FB_CUR_SETIMAGE)) {
1632 u32 bg_idx = cursor->image.bg_color;
1633 u32 fg_idx = cursor->image.fg_color;
1634 u32 s_pitch = (cursor->image.width+7) >> 3;
1635 u32 d_pitch = MAX_CURS/8;
1636 u8 *dat = (u8 *) cursor->image.data;
1637 u8 *msk = (u8 *) cursor->mask;
1640 src = kmalloc(s_pitch * cursor->image.height, GFP_ATOMIC);
1643 switch (cursor->rop) {
1645 for (i = 0; i < s_pitch * cursor->image.height; i++)
1646 src[i] = dat[i] ^ msk[i];
1650 for (i = 0; i < s_pitch * cursor->image.height; i++)
1651 src[i] = dat[i] & msk[i];
1655 fb_pad_aligned_buffer(data, d_pitch, src, s_pitch,
1656 cursor->image.height);
1658 bg = ((info->cmap.red[bg_idx] & 0xf8) << 7) |
1659 ((info->cmap.green[bg_idx] & 0xf8) << 2) |
1660 ((info->cmap.blue[bg_idx] & 0xf8) >> 3) |
1663 fg = ((info->cmap.red[fg_idx] & 0xf8) << 7) |
1664 ((info->cmap.green[fg_idx] & 0xf8) << 2) |
1665 ((info->cmap.blue[fg_idx] & 0xf8) >> 3) |
1668 par->riva.LockUnlock(&par->riva, 0);
1670 rivafb_load_cursor_image(par, data, bg, fg,
1671 cursor->image.width,
1672 cursor->image.height);
1678 par->riva.ShowHideCursor(&par->riva, 1);
1683 static int rivafb_sync(struct fb_info *info)
1685 struct riva_par *par = info->par;
1691 /* ------------------------------------------------------------------------- *
1693 * initialization helper functions
1695 * ------------------------------------------------------------------------- */
1697 /* kernel interface */
1698 static struct fb_ops riva_fb_ops = {
1699 .owner = THIS_MODULE,
1700 .fb_open = rivafb_open,
1701 .fb_release = rivafb_release,
1702 .fb_check_var = rivafb_check_var,
1703 .fb_set_par = rivafb_set_par,
1704 .fb_setcolreg = rivafb_setcolreg,
1705 .fb_pan_display = rivafb_pan_display,
1706 .fb_blank = rivafb_blank,
1707 .fb_fillrect = rivafb_fillrect,
1708 .fb_copyarea = rivafb_copyarea,
1709 .fb_imageblit = rivafb_imageblit,
1710 .fb_cursor = rivafb_cursor,
1711 .fb_sync = rivafb_sync,
1714 static int __devinit riva_set_fbinfo(struct fb_info *info)
1716 unsigned int cmap_len;
1717 struct riva_par *par = info->par;
1720 info->flags = FBINFO_DEFAULT
1721 | FBINFO_HWACCEL_XPAN
1722 | FBINFO_HWACCEL_YPAN
1723 | FBINFO_HWACCEL_COPYAREA
1724 | FBINFO_HWACCEL_FILLRECT
1725 | FBINFO_HWACCEL_IMAGEBLIT;
1727 /* Accel seems to not work properly on NV30 yet...*/
1728 if ((par->riva.Architecture == NV_ARCH_30) || noaccel) {
1729 printk(KERN_DEBUG PFX "disabling acceleration\n");
1730 info->flags |= FBINFO_HWACCEL_DISABLED;
1733 info->var = rivafb_default_var;
1734 info->fix.visual = (info->var.bits_per_pixel == 8) ?
1735 FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
1737 info->pseudo_palette = par->pseudo_palette;
1739 cmap_len = riva_get_cmap_len(&info->var);
1740 fb_alloc_cmap(&info->cmap, cmap_len, 0);
1742 info->pixmap.size = 8 * 1024;
1743 info->pixmap.buf_align = 4;
1744 info->pixmap.access_align = 32;
1745 info->pixmap.flags = FB_PIXMAP_SYSTEM;
1746 info->var.yres_virtual = -1;
1748 return (rivafb_check_var(&info->var, info));
1751 #ifdef CONFIG_PPC_OF
1752 static int __devinit riva_get_EDID_OF(struct fb_info *info, struct pci_dev *pd)
1754 struct riva_par *par = info->par;
1755 struct device_node *dp;
1756 const unsigned char *pedid = NULL;
1757 const unsigned char *disptype = NULL;
1758 static char *propnames[] = {
1759 "DFP,EDID", "LCD,EDID", "EDID", "EDID1", "EDID,B", "EDID,A", NULL };
1763 dp = pci_device_to_OF_node(pd);
1764 for (; dp != NULL; dp = dp->child) {
1765 disptype = get_property(dp, "display-type", NULL);
1766 if (disptype == NULL)
1768 if (strncmp(disptype, "LCD", 3) != 0)
1770 for (i = 0; propnames[i] != NULL; ++i) {
1771 pedid = get_property(dp, propnames[i], NULL);
1772 if (pedid != NULL) {
1773 par->EDID = (unsigned char *)pedid;
1774 NVTRACE("LCD found.\n");
1782 #endif /* CONFIG_PPC_OF */
1784 #if defined(CONFIG_FB_RIVA_I2C) && !defined(CONFIG_PPC_OF)
1785 static int __devinit riva_get_EDID_i2c(struct fb_info *info)
1787 struct riva_par *par = info->par;
1788 struct fb_var_screeninfo var;
1792 riva_create_i2c_busses(par);
1793 for (i = 0; i < par->bus; i++) {
1794 riva_probe_i2c_connector(par, i+1, &par->EDID);
1795 if (par->EDID && !fb_parse_edid(par->EDID, &var)) {
1796 printk(PFX "Found EDID Block from BUS %i\n", i);
1802 return (par->EDID) ? 1 : 0;
1804 #endif /* CONFIG_FB_RIVA_I2C */
1806 static void __devinit riva_update_default_var(struct fb_var_screeninfo *var,
1807 struct fb_info *info)
1809 struct fb_monspecs *specs = &info->monspecs;
1810 struct fb_videomode modedb;
1813 /* respect mode options */
1815 fb_find_mode(var, info, mode_option,
1816 specs->modedb, specs->modedb_len,
1818 } else if (specs->modedb != NULL) {
1819 /* get preferred timing */
1820 if (info->monspecs.misc & FB_MISC_1ST_DETAIL) {
1823 for (i = 0; i < specs->modedb_len; i++) {
1824 if (specs->modedb[i].flag & FB_MODE_IS_FIRST) {
1825 modedb = specs->modedb[i];
1830 /* otherwise, get first mode in database */
1831 modedb = specs->modedb[0];
1833 var->bits_per_pixel = 8;
1834 riva_update_var(var, &modedb);
1840 static void __devinit riva_get_EDID(struct fb_info *info, struct pci_dev *pdev)
1843 #ifdef CONFIG_PPC_OF
1844 if (!riva_get_EDID_OF(info, pdev))
1845 printk(PFX "could not retrieve EDID from OF\n");
1846 #elif defined(CONFIG_FB_RIVA_I2C)
1847 if (!riva_get_EDID_i2c(info))
1848 printk(PFX "could not retrieve EDID from DDC/I2C\n");
1854 static void __devinit riva_get_edidinfo(struct fb_info *info)
1856 struct fb_var_screeninfo *var = &rivafb_default_var;
1857 struct riva_par *par = info->par;
1859 fb_edid_to_monspecs(par->EDID, &info->monspecs);
1860 fb_videomode_to_modelist(info->monspecs.modedb, info->monspecs.modedb_len,
1862 riva_update_default_var(var, info);
1864 /* if user specified flatpanel, we respect that */
1865 if (info->monspecs.input & FB_DISP_DDI)
1869 /* ------------------------------------------------------------------------- *
1873 * ------------------------------------------------------------------------- */
1875 static u32 __devinit riva_get_arch(struct pci_dev *pd)
1879 switch (pd->device & 0x0ff0) {
1880 case 0x0100: /* GeForce 256 */
1881 case 0x0110: /* GeForce2 MX */
1882 case 0x0150: /* GeForce2 */
1883 case 0x0170: /* GeForce4 MX */
1884 case 0x0180: /* GeForce4 MX (8x AGP) */
1885 case 0x01A0: /* nForce */
1886 case 0x01F0: /* nForce2 */
1889 case 0x0200: /* GeForce3 */
1890 case 0x0250: /* GeForce4 Ti */
1891 case 0x0280: /* GeForce4 Ti (8x AGP) */
1894 case 0x0300: /* GeForceFX 5800 */
1895 case 0x0310: /* GeForceFX 5600 */
1896 case 0x0320: /* GeForceFX 5200 */
1897 case 0x0330: /* GeForceFX 5900 */
1898 case 0x0340: /* GeForceFX 5700 */
1901 case 0x0020: /* TNT, TNT2 */
1904 case 0x0010: /* Riva128 */
1907 default: /* unknown architecture */
1913 static int __devinit rivafb_probe(struct pci_dev *pd,
1914 const struct pci_device_id *ent)
1916 struct riva_par *default_par;
1917 struct fb_info *info;
1923 info = framebuffer_alloc(sizeof(struct riva_par), &pd->dev);
1925 printk (KERN_ERR PFX "could not allocate memory\n");
1929 default_par = info->par;
1930 default_par->pdev = pd;
1932 info->pixmap.addr = kzalloc(8 * 1024, GFP_KERNEL);
1933 if (info->pixmap.addr == NULL) {
1935 goto err_framebuffer_release;
1938 ret = pci_enable_device(pd);
1940 printk(KERN_ERR PFX "cannot enable PCI device\n");
1941 goto err_free_pixmap;
1944 ret = pci_request_regions(pd, "rivafb");
1946 printk(KERN_ERR PFX "cannot request PCI regions\n");
1947 goto err_disable_device;
1950 mutex_init(&default_par->open_lock);
1951 default_par->riva.Architecture = riva_get_arch(pd);
1953 default_par->Chipset = (pd->vendor << 16) | pd->device;
1954 printk(KERN_INFO PFX "nVidia device/chipset %X\n",default_par->Chipset);
1956 if(default_par->riva.Architecture == 0) {
1957 printk(KERN_ERR PFX "unknown NV_ARCH\n");
1959 goto err_release_region;
1961 if(default_par->riva.Architecture == NV_ARCH_10 ||
1962 default_par->riva.Architecture == NV_ARCH_20 ||
1963 default_par->riva.Architecture == NV_ARCH_30) {
1964 sprintf(rivafb_fix.id, "NV%x", (pd->device & 0x0ff0) >> 4);
1966 sprintf(rivafb_fix.id, "NV%x", default_par->riva.Architecture);
1969 default_par->FlatPanel = flatpanel;
1971 printk(KERN_INFO PFX "flatpanel support enabled\n");
1972 default_par->forceCRTC = forceCRTC;
1974 rivafb_fix.mmio_len = pci_resource_len(pd, 0);
1975 rivafb_fix.smem_len = pci_resource_len(pd, 1);
1978 /* enable IO and mem if not already done */
1981 pci_read_config_word(pd, PCI_COMMAND, &cmd);
1982 cmd |= (PCI_COMMAND_IO | PCI_COMMAND_MEMORY);
1983 pci_write_config_word(pd, PCI_COMMAND, cmd);
1986 rivafb_fix.mmio_start = pci_resource_start(pd, 0);
1987 rivafb_fix.smem_start = pci_resource_start(pd, 1);
1989 default_par->ctrl_base = ioremap(rivafb_fix.mmio_start,
1990 rivafb_fix.mmio_len);
1991 if (!default_par->ctrl_base) {
1992 printk(KERN_ERR PFX "cannot ioremap MMIO base\n");
1994 goto err_release_region;
1997 switch (default_par->riva.Architecture) {
1999 /* Riva128's PRAMIN is in the "framebuffer" space
2000 * Since these cards were never made with more than 8 megabytes
2001 * we can safely allocate this separately.
2003 default_par->riva.PRAMIN = ioremap(rivafb_fix.smem_start + 0x00C00000, 0x00008000);
2004 if (!default_par->riva.PRAMIN) {
2005 printk(KERN_ERR PFX "cannot ioremap PRAMIN region\n");
2007 goto err_iounmap_ctrl_base;
2014 default_par->riva.PCRTC0 =
2015 (u32 __iomem *)(default_par->ctrl_base + 0x00600000);
2016 default_par->riva.PRAMIN =
2017 (u32 __iomem *)(default_par->ctrl_base + 0x00710000);
2020 riva_common_setup(default_par);
2022 if (default_par->riva.Architecture == NV_ARCH_03) {
2023 default_par->riva.PCRTC = default_par->riva.PCRTC0
2024 = default_par->riva.PGRAPH;
2027 rivafb_fix.smem_len = riva_get_memlen(default_par) * 1024;
2028 default_par->dclk_max = riva_get_maxdclk(default_par) * 1000;
2029 info->screen_base = ioremap(rivafb_fix.smem_start,
2030 rivafb_fix.smem_len);
2031 if (!info->screen_base) {
2032 printk(KERN_ERR PFX "cannot ioremap FB base\n");
2034 goto err_iounmap_pramin;
2039 default_par->mtrr.vram = mtrr_add(rivafb_fix.smem_start,
2040 rivafb_fix.smem_len,
2041 MTRR_TYPE_WRCOMB, 1);
2042 if (default_par->mtrr.vram < 0) {
2043 printk(KERN_ERR PFX "unable to setup MTRR\n");
2045 default_par->mtrr.vram_valid = 1;
2046 /* let there be speed */
2047 printk(KERN_INFO PFX "RIVA MTRR set to ON\n");
2050 #endif /* CONFIG_MTRR */
2052 info->fbops = &riva_fb_ops;
2053 info->fix = rivafb_fix;
2054 riva_get_EDID(info, pd);
2055 riva_get_edidinfo(info);
2057 ret=riva_set_fbinfo(info);
2059 printk(KERN_ERR PFX "error setting initial video mode\n");
2060 goto err_iounmap_screen_base;
2063 fb_destroy_modedb(info->monspecs.modedb);
2064 info->monspecs.modedb = NULL;
2066 pci_set_drvdata(pd, info);
2069 riva_bl_init(info->par);
2071 ret = register_framebuffer(info);
2074 "error registering riva framebuffer\n");
2075 goto err_iounmap_screen_base;
2078 printk(KERN_INFO PFX
2079 "PCI nVidia %s framebuffer ver %s (%dMB @ 0x%lX)\n",
2082 info->fix.smem_len / (1024 * 1024),
2083 info->fix.smem_start);
2088 err_iounmap_screen_base:
2089 #ifdef CONFIG_FB_RIVA_I2C
2090 riva_delete_i2c_busses(info->par);
2092 iounmap(info->screen_base);
2094 if (default_par->riva.Architecture == NV_ARCH_03)
2095 iounmap(default_par->riva.PRAMIN);
2096 err_iounmap_ctrl_base:
2097 iounmap(default_par->ctrl_base);
2099 pci_release_regions(pd);
2102 kfree(info->pixmap.addr);
2103 err_framebuffer_release:
2104 framebuffer_release(info);
2109 static void __exit rivafb_remove(struct pci_dev *pd)
2111 struct fb_info *info = pci_get_drvdata(pd);
2112 struct riva_par *par = info->par;
2116 #ifdef CONFIG_FB_RIVA_I2C
2117 riva_delete_i2c_busses(par);
2121 unregister_framebuffer(info);
2126 if (par->mtrr.vram_valid)
2127 mtrr_del(par->mtrr.vram, info->fix.smem_start,
2128 info->fix.smem_len);
2129 #endif /* CONFIG_MTRR */
2131 iounmap(par->ctrl_base);
2132 iounmap(info->screen_base);
2133 if (par->riva.Architecture == NV_ARCH_03)
2134 iounmap(par->riva.PRAMIN);
2135 pci_release_regions(pd);
2136 kfree(info->pixmap.addr);
2137 framebuffer_release(info);
2138 pci_set_drvdata(pd, NULL);
2142 /* ------------------------------------------------------------------------- *
2146 * ------------------------------------------------------------------------- */
2149 static int __init rivafb_setup(char *options)
2154 if (!options || !*options)
2157 while ((this_opt = strsep(&options, ",")) != NULL) {
2158 if (!strncmp(this_opt, "forceCRTC", 9)) {
2162 if (!*p || !*(++p)) continue;
2163 forceCRTC = *p - '0';
2164 if (forceCRTC < 0 || forceCRTC > 1)
2166 } else if (!strncmp(this_opt, "flatpanel", 9)) {
2168 } else if (!strncmp(this_opt, "backlight:", 10)) {
2169 backlight = simple_strtoul(this_opt+10, NULL, 0);
2171 } else if (!strncmp(this_opt, "nomtrr", 6)) {
2174 } else if (!strncmp(this_opt, "strictmode", 10)) {
2176 } else if (!strncmp(this_opt, "noaccel", 7)) {
2179 mode_option = this_opt;
2184 #endif /* !MODULE */
2186 static struct pci_driver rivafb_driver = {
2188 .id_table = rivafb_pci_tbl,
2189 .probe = rivafb_probe,
2190 .remove = __exit_p(rivafb_remove),
2195 /* ------------------------------------------------------------------------- *
2199 * ------------------------------------------------------------------------- */
2201 static int __devinit rivafb_init(void)
2204 char *option = NULL;
2206 if (fb_get_options("rivafb", &option))
2208 rivafb_setup(option);
2210 return pci_register_driver(&rivafb_driver);
2214 module_init(rivafb_init);
2217 static void __exit rivafb_exit(void)
2219 pci_unregister_driver(&rivafb_driver);
2222 module_exit(rivafb_exit);
2225 module_param(noaccel, bool, 0);
2226 MODULE_PARM_DESC(noaccel, "bool: disable acceleration");
2227 module_param(flatpanel, int, 0);
2228 MODULE_PARM_DESC(flatpanel, "Enables experimental flat panel support for some chipsets. (0 or 1=enabled) (default=0)");
2229 module_param(forceCRTC, int, 0);
2230 MODULE_PARM_DESC(forceCRTC, "Forces usage of a particular CRTC in case autodetection fails. (0 or 1) (default=autodetect)");
2232 module_param(nomtrr, bool, 0);
2233 MODULE_PARM_DESC(nomtrr, "Disables MTRR support (0 or 1=disabled) (default=0)");
2235 module_param(strictmode, bool, 0);
2236 MODULE_PARM_DESC(strictmode, "Only use video modes from EDID");
2238 MODULE_AUTHOR("Ani Joshi, maintainer");
2239 MODULE_DESCRIPTION("Framebuffer driver for nVidia Riva 128, TNT, TNT2, and the GeForce series");
2240 MODULE_LICENSE("GPL");